$ git clone -n https://src.fedoraproject.org/rpms/mingw-sip.git /var/lib/mock/f45-build-18825-530/root/chroot_tmpdir/scmroot/mingw-sip
Cloning into '/var/lib/mock/f45-build-18825-530/root/chroot_tmpdir/scmroot/mingw-sip'...
$ git fetch origin a72c97cb03cb16cb15cf23460fd86f31ed31efce:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/mingw-sip
 * [new ref]         a72c97cb03cb16cb15cf23460fd86f31ed31efce -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at a72c97c Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild